Shareware works differently than its' commercial counterpart.  You must
first purchase commercial software and then decide at home whether it
is the right program for you.  This can lead to disapointments.  

Shareware allows a user to test drive the program before buying it.
After you have tried a shareware program and decide that you like it
and if you are using it on a regular basis, you are obligated to
register the program with the author.  Registration fees range anywhere
from 5.00 to 100.00 depending on the author.  In return for registering,
you recieve such benefits as the latest version, a printed manual,
phone support, customization and other niceties.  Registering also
encourages authors to create more shareware.

If you've ever created anything that's taken a lot of hard work and
time, you can appreciate the time and work authors have put into
their programs.  We encourage you to register any program that you find
useful.